From what I heard the sword and other level 85 items are level 85 raid entrie level, kind of like the present titansteal set, or cata level BS equivalent. So if you are able to put the sundered pieces together, you just save yourself a trip to the local BS, and your weapon is a lot cooler looking.

The reasoning for them being BoE, is so if the character your currently on is too high or out gears the armor item you found, you can give it to an alt of apropriate level, or sell it on the AH.

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"89.7% of the things you read on the internet are a lie, including this statement."

Hopes that one day we can live in a world were the RNG and Loot gods are nice.